body{
    min-width: 350px;
    max-width: 750px;
    margin: 0 auto;
    background-color: #ffffff;
}

@media screen and (min-width:750px){
    html{
        font-size: 75px !important;
    }
}

a{
    text-decoration: none;
}
header{
        font-size: 0.466667rem;
        color: #1C1C1C;
        height: 1.293333rem;
        width: 100%;
        line-height: 1.293333rem;
        text-align: center;
        border-bottom: 0.013333rem solid #cccccc;
}

.lis{
    a{
        display: block;
        height: 3.386667rem;
        width: 3.373333rem;
        margin: 1.333333rem auto;
        &:nth-child(1){
            margin: 1.2rem auto 0;
        }
        img{
            width: 100%;
        }
      
    }


  
}